I have installed Windows 7 onto my Macbook using Boot Camp, but i find the whole experience very quiet seeing I cannot access my music that resides on the OS X partition. Is there software out there that allows me to read (and maybe write) OS X file systems?

Although free is always proffered, as long as it isn't expensive, I am not against forking out a couple bucks to buy quality software.

It would be very good if the partition would show up the same as any other partition so I can navigate it using Explorer or any other software.

The version of Boot Camp that comes with Snow Leopard will contain HFS+ drivers for Windows. Rather than buy additional utilities, you might prefer to wait for the upgrade.

"Boot Camp now includes HFS+ read support that enables you to access the files on your Mac OS X partition from Windows. It’s read-only to prevent PC viruses from affecting Mac OS X, but you can easily save your work to your Windows partition and access it later from Mac OS X."